Reply To: Sensor reading errors using Meter Teros modular library

Have you tried using the -D MS_SDI12_NON_CONCURRENT build flag: https://envirodiy.github.io/ModularSensors/group__sdi12__group.html.  Some SDI-12 sensors don’t properly support the concurrent mode that ModularSensors uses by default.  That could by why they work individually, but not all together.